Add jfrog package

Replace 2 lines with 1 in the install section

Compile jfrog from source using go

packages/jfrog.rb

+require 'package'
+
+class Jfrog < Package
+  description 'JFrog CLI is a compact and smart client that provides a simple interface that automates access to Artifactory, Bintray and Mission Control through their respective REST APIs.'
+  homepage 'https://github.com/JFrogDev/jfrog-cli-go'
+  version '1.12.0'
+  source_url 'https://github.com/JFrogDev/jfrog-cli-go/archive/1.12.0.tar.gz'
+  source_sha256 '8f961f6a6bb79608a8a50ac17f9298633cfd115265ac61f040cda84874336abb'
+
+  depends_on 'go' => :build
+
+  def self.install
+    system "SAVEGOPATH=$GOPATH && \
+            export GOPATH=#{CREW_DEST_PREFIX}/share/jfrog && \
+            go get -v github.com/jfrogdev/jfrog-cli-go/jfrog-cli/jfrog && \
+            export GOPATH=$SAVEGOPATH"
+    system "mkdir -p #{CREW_DEST_PREFIX}/bin"
+    FileUtils.cd("#{CREW_DEST_PREFIX}/bin") do
+      system "ln -s #{CREW_PREFIX}/share/jfrog/bin/jfrog jfrog"
+    end
+    system "rm -rf #{CREW_DEST_PREFIX}/share/jfrog/pkg"
+    system "rm -rf #{CREW_DEST_PREFIX}/share/jfrog/src"
+  end
+end